10421400020 has 48 divisors (see below), whose sum is σ = 22999202688. Its totient is φ = 3961560960.

The previous prime is 10421400019. The next prime is 10421400029. The reversal of 10421400020 is 2000412401.

It is a junction number, because it is equal to n+sod(n) for n = 10421399968 and 10421400004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421400029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131936 + ... + 195575.

It is an arithmetic number, because the mean of its divisors is an integer number (479150056).

Almost surely, 2^10421400020 is an apocalyptic number.

10421400020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10421400020 is an abundant number, since it is smaller than the sum of its proper divisors (12577802668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10421400020 is a wasteful number, since it uses less digits than its factorization.

10421400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327600 (or 327598 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10421400020 its reverse (2000412401), we get a palindrome (12421812421).

The spelling of 10421400020 in words is "ten billion, four hundred twenty-one million, four hundred thousand, twenty".